The contamination status and distribution of PTS, including HCHs, DDTs, PCBs, and PAHs, were studied in the agricultural soil of Lishui County, one of China's nationally designated eco-demonstration region. The PTS was analyzed by GC, GC/MS, and HPLC coupled with microwave extraction. The concentrations of the sum of HCHs, DDTs, and PCBs ranged from < 0.1 ng g(-1) to 133 ng g(-1), 93.8 ng g(-1), and 81.0 ng g(-1) (dry wieght), respectively; while the contents of the sum of PAHs ranged from 3.26 ng g(-1) to 91.0 ng g(-1) (dry wieght). The soil investigation revealed that there were no recent HCHs and DDTs pollution; none of the soil PCBs concentrations suggested a serious biological threat in the investigated area; the extent of pollution of PAHs was low compared to other investigations. In summary, levels of PTS contamination in the soil of the Lishui County were relatively low, but caution should be taken in industrial zone.
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机译：在中国国家指定生态示范区之一的丽水县的农业土壤中研究了六氯环己烷，六氯环己烷，滴滴涕，多氯联苯和多环芳烃的污染状况和分布。通过GC，GC / MS和HPLC结合微波萃取对PTS进行分析。六氯环己烷，滴滴涕和多氯联苯的总浓度范围从<0.1 ng g（-1）到133 ng g（-1），93.8 ng g（-1）和81.0 ng g（-1）（干重） ）， 分别;而PAHs的总含量在3.26 ng g（-1）到91.0 ng g（-1）（干重）之间。土壤调查表明，最近没有六氯环己烷和滴滴涕的污染。土壤中多氯联苯的浓度均未表明研究区域存在严重的生物威胁;与其他调查相比，PAHs的污染程度较低。综上所述，丽水县土壤中的PTS污染水平相对较低，但在工业区应谨慎。
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